Ventilating sash-lock.



W. A. NICHOLS. VENTILTING SASH LOOK.

ABPLIOATION FILED 00115, 1904.

PATENTED AUG. l57 1905.

llllmmfl" vUNITED STATES PATIENT OFFICE.

VENTILTING Stl-IWLCK.

Specification of Letters Patent.

Patented Aug'. l5, 1905.

Application tiled October l5, 1904. Serial No. 228,559.

vTo u/Z/ wit/Tfn, it mat/j concern:

Be it known that I, WALTER A. NICHOLS, a citizen ot' the United States, residing at Chicago, in the county of (look and State et' Illinois, have invented certain new and useful Improvements in Ventilating Sash-Locks, of which the following' is a specilication.

The object of this invention is to provide a window-lock which will lock the sections ot' the window together when closed and which will also enable one or both of the sections to be opened a slight distance ior the purpose el" ventilation, but which will prevent the turther opening' of the window-sections,

thereby enablingl a window to be raised and the house ventilated without running any risk from the intrusion of burglars or unauthorized persons into a house.

Another object of the invention is to so construct the parts that they will operate easily and perfectly without disliguring the appearance ot the window or necessitating the use of cumbersome or unsightly appliances.

The present invention is adapted to be used as a window-lock pure and simple when so desired, and the provision of means t'or allowing the window to be raised a predetermined distance and there held does not in any way interfere with the action ot' the device as a window-lock.

The invention consists in the features of construction and combination ot' parts hereinafter described and claimed.

In the drawings illustrating the invention, Figure l is a plan view of two adjoining sections of a window i'n closed and unlocked position; Fig. 2, a side elevation of two sections oit' a window in open'position and held against further opening by the appliance of the present invention; Fig. 3, an under face view of one of the sections ot' the lock; Fig. LI, a side elevation of a slightly-modified form oll construction, and 5 a plan View of the same.

The lock of the present invention is constructed in two sections 1 and 2, section 1 serving as a bolt and section 2 as a socket. The bolt-section consists oi a base-plate 3, hollowed out on its under lace to provide a recess t, and said plate is secured to the window-sash by means ol lugs 5, through which pass screws 6 or other attaching means. Secured to the base-plate is a bolt 7, which is preferably semicircular in 'form and consists olf a body portion S, having a curved flange 9, having' at one end a backwardly-projecting thumb-piece lO and terminating at its forward end in an enlarged head 1i. The bolt is pivoted to the base'plate by means oiI a pivot I2, which is preferably squared at its outer end 't'or the attachment ol the body portion ot' the bolt thereunto and provided at its inner end with a nut 13, against which bears the `free end of a curved springl 14, which arrangement positively projects the bolt forward or back after it has been initially moved to bring one or the other of the cornel's olZ the nut 13 into contact with the tace ol the spring'. The bolt, which, as shown in Ilig. 1, is located on the top sash l5 oi' the lower window, cooperates with the socket 2, which is secured to the lower sash of the upper window, and said socket consists of a base-plate 17, provided with oppositcly-disposed lugs or cars 1S, through which pass bolts or screws 19 for securing the socket tothe window-sash- The body portion 20 ot' the socket is recessed on its interior and open at one end and on its inner side. The top wall of the open end is provided with a recess 2l for the projection thereunder of the enlarged head ol the pivoted bolt when passed through the slotted bar hereinafter described.

The device hitherto described serves as a lock for rigidly securing together the sections of the window; but in order to provide for the opening oi' the window a bar 22 is provided, having in its body a slot terminating at its attaching end in an enlarged opening' 2li, adapted for the passage, therethrough ot' the enlarged head 1l of the bolt, which head passes under the recessed portion 2 1, and may be raised without contacting the top wall of the socket. The slotted bar is iin'mfided at its attaching' end with a rounded cross-yoke 25, which is passed under one of the ears A1S, which ear is bulged or rounded out to provide a socket 26 for allowing the slotted bar or arm to be moved Yfrom the horizontal position (shown in Fig. l) to the vertical position. (Shown in Fig. 2.) ln place of the socket 1ne1nbershown in Figs. l and 2 a single slotted plate 27 may be employed, which plate is secured to one of the side sashes ot the upper window by means of screws 28 or other 'tastening means, and said slotted plate coperates with a locking-boltof the character hitherto described forthe purpose oi" allowing the two windows to be raised with respect toone another. Vhen the socket 2 is dispensed with, however, it is desirable to provide the bolt member with a projecting lug 29 on its rear end, which can be projected over the lower sash of the upper window, as shown in dotted lines in Fig. 5, when it is desirable to firmly lock the two sections of the window together.

In use when employing the device of Figs. l and 2 the two windows can be rigidly locked together by throwing down the slotted bar or arm into contact with the window-sash, which allows the bolt to be thrown forward suiiiciently to pass under the inclosing wall of the socket portion 2, which locks the windows together. Then it is desirable to employ the slotted bar, the bar is thrown into Vertical position, as shown in Fig. 2, and the bolt thrown forward to have its enlarged head Il enter the enlarged opening Q4, after which further forward projection of the bolt into the socket is prevented by the slotted bar and the parts held iu position to allow the windows to be moved with respect to one another and to allow the bolt to pass through the recess 2l and travel up and down in the slot;

but the removal of the bolt is prevented by the size of the enlarged head, which can only be removed from the slotted arm when the windows have been closed and the parts brought into proper relation to one another. This prevents tampering with the device, since it is impossible to disengage the parts when the window is open to any degree whatsoever. Manipulation of the device from the inside, however, is easy, since as soon as the window-sections are closed the parts are in a position to be disengaged from one another.

-The operation of the device of Figs. 4 and 5 is similar in every respect to that hitherto described, except that the slotted plate or bar is maintained permanently in Vertical position by its attachment to the side sash of the upper window. In employing the bar in Figs. 4 and 5 it will of course be necessary to locate the bolt at the end of the upper sash of the lower window in suitable relation to the slotted bar with which it cooperates.

It will be seen from the foregoing description that the device is extremely simple in construction and manipulation and that it provides ample security for the inmates of a house and at the same time allows the windows to be raised for Ventilating purposes, which is a matter of very great importance, especially in sleeping or living rooms, the windows of which must be secured at night to preventintrusion.

- Though the invention has been described as usable in connection with windows, it is obvious that it may be used in connection with doors or similar constructions.

Vhat I regard as new, and desire to secure by Letters Patent, is-a l. In a Ventilating sash-lock for windows, the combination of a bolt pivoted to one of the window-sections, a socket secured to the other window-section and adapted to have the bolt turned on its pivot and projected thereinto to lock the window-sections together, and a bar provided with a slot adapted to have the bolt projected therethrough and held free of the socket to allow the window-sections to be raised and lowered a predetermined distance, substantially as described.

2. In a Ventilating sash-lock for windows, the combination of a bolt pivoted to one of the window -sections and provided with an enlarged head adapted to be moved in the are ot' a circle, a socket provided with a recess adapted to receive the enlarged head thereinto when the window-sections are locked, a bar pivoted to the socket and adapted to be raised to vertical position to be in thepath of travel of the enlarged head of the bolt and provided with a slot enlarged at its lower end and adapted to have the enlarged head of the bolt projected therethrough when the window-sections are closed and held against further projection into the socket to allow the bolt to slide in the slot, substantially as described.

3. In a Ventilating sash-lock for windows, the combination of a plate adapted to be secured to one of the window-sections, a bolt pivoted to the plate and provided with a projecting head, a socket secured to the other window-section and adapted to receive the bolt when turned to one position, and a slotted bar hinged to the socket and adapted to be raised into Vertical position to have the bolt projected therethrough and held against insertion into the socket to allow the bolt to be raised and lowered in the slot, substantially as described.

4. In a Ventilating sash-lock for windows, the combination of a bolt pivoted to one of the window-sections and provided at its opposite ends with projecting portions, a socket secured to the other window-section and adapted to receive the bolt when turned to one position to rigidly lock together the windowsections, and a slotted plate or bar secured to,

the last-1n entioned window-section and adapted to receive the bolt when moved to another position to allow the Window-sections to be raised and lowered a predetermined distance with respect to one another, substantially as described.

VALTER A. NICHOLS.

IVitnesses:

SAMUEL IV. BANNING, WILLIAM P. BOND. 

